31731830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{244091}}^1$

素因数の和:244111

約数の個数: 16

約数和(自身を含む): 61511184

約数和(自身を除く): 29779354

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 244091, 488182, 1220455, 2440910, 3173183, 6346366, 15865915, 31731830]

約数ペア:

[(1, 31731830), (2, 15865915), (5, 6346366), (10, 3173183), (13, 2440910), (26, 1220455), (65, 488182), (130, 244091)]